Apriel-v1.5-15B-Thinker vs. Seed-OSS-36B-Instruct
Comparison between Apriel-v1.5-15B-Thinker and Seed-OSS-36B-Instruct across intelligence, price, speed, context window and more.
For details relating to our methodology, see our Methodology page.
Highlights
Model Comparison
Apriel-v1.5-15B-Thinker | Seed-OSS-36B-Instruct | ||
|---|---|---|---|
| Intelligence Index | 21* | 18* | Apriel-v1.5-15B-Thinker is more intelligent than Seed-OSS-36B-Instruct |
| Price per 1M Tokens | $0.00 | $0.25 | Apriel-v1.5-15B-Thinker is cheaper than Seed-OSS-36B-Instruct |
| Context Window | 128k tokens~192 A4 pages of size 12 Arial font | 512k tokens~768 A4 pages of size 12 Arial font | Seed-OSS-36B-Instruct has a larger context window than Apriel-v1.5-15B-Thinker |
| Release Date | September, 2025 | August, 2025 | Apriel-v1.5-15B-Thinker has a more recent release date than Seed-OSS-36B-Instruct |
| Parameters | 15B | 36.2B | Seed-OSS-36B-Instruct has more parameters than Apriel-v1.5-15B-Thinker |
| Reasoning | Yes | Yes | Both Apriel-v1.5-15B-Thinker and Seed-OSS-36B-Instruct have reasoning |
| Image Input Support | Yes | No | Apriel-v1.5-15B-Thinker has image input support while Seed-OSS-36B-Instruct does not |
| Open Source (Weights) | Both Apriel-v1.5-15B-Thinker and Seed-OSS-36B-Instruct are open source | ||
| License | |||
| License Supports Commercial Use Without Restrictions | Yes | Yes | Both Apriel-v1.5-15B-Thinker and Seed-OSS-36B-Instruct have license supports commercial use without restrictions |
IntelligenceUpdated
Artificial Analysis Intelligence Index
Artificial Analysis Intelligence Index by Open Weights / Proprietary
Intelligence Evaluations
Agentic real-world work tasks, (Elo-500)/2000
Agentic tool use
Agentic coding & terminal use
Coding
Reasoning & knowledge
Scientific reasoning
Physics reasoning
Knowledge
1 - hallucination rate
Long context reasoning
Agentic knowledge work, Elo
Agentic SaaS workflows
Legal agentic work, task all-pass rate
Agentic business operations
Instruction following
Long-horizon agentic tasks
Kubernetes incident root-cause analysis
Visual reasoning
AA-BriefcaseNew
AA-Briefcase Elo
AA-Omniscience
AA-Omniscience Index
Openness
Artificial Analysis Openness Index: Score
Intelligence Index Comparisons
Intelligence vs. Cost per Intelligence Index Task
Token Use
Output Tokens per Intelligence Index Task
Price and Cost
Cost per Intelligence Index Task
Cost to Run Artificial Analysis Intelligence Index
Pricing: Cache Hit, Input, and Output
Context Window
Context Window
Speed
Measured by Output Speed (tokens per second)
Output Speed
Time per Intelligence Index Task
Latency
Measured by Time (seconds) to First Token
Latency: Time To First Answer Token
End-to-End Response Time
Seconds to output 500 tokens, calculated based on time to first token, 'thinking' time for reasoning models, and output speed
End-to-End Response Time
Model Size (Open Weights Models Only)
Model Size: Total and Active Parameters
Frequently Asked Questions
Apriel-v1.5-15B-Thinker is more intelligent. Apriel-v1.5-15B-Thinker scores 21 (estimated), compared with Seed-OSS-36B-Instruct at 18 (estimated) on the Artificial Analysis Intelligence Index.
Seed-OSS-36B-Instruct has a larger context window. Seed-OSS-36B-Instruct supports 510k tokens, compared with Apriel-v1.5-15B-Thinker at 130k tokens.